Table I.

(A) “Importance of olfaction” questionnaire (IO-Q, Croy et al., 2010 ⁴); (B) “Importance of taste and flavour” questionnaire (ITF-Q) by our group in the English language with reference to the subscales.

(A) Importance of olfaction This questionnaire refers to the role your sense of smell plays in your daily life. Please answer all of the questions spontaneously, there are no right or wrong answers.
Scale		4	3	2	1
		I totally agree	I mostly agree	I mostly disagree	I totally disagree
Ass	The smell of a person plays a role in the decision whether I like him/her.
App	I smell foods to find out whether it is spoiled or not.
App	I sniff food before eating.
Con	Please imagine you visit a museum. There is an offer to get additionally smell- presentations to underline the overall impression for the price of 2. Would you take this offer?
Con	When I don’t like the smell of a shampoo, I don’t buy it.
Ass	When I smell delicious food, I’m getting hungry.
Agg	Without my sense of smell, life would be worthless.
Con	I try to locate the odour, when I smell something.
Ass	I feel rather quickly disturbed by odours in my environment.
Ass	Certain smells immediately activate numerous memories.
App	Before drinking coffee/tee, I intentionally smell it.
App	When I buy tomatoes, I pay attention to their odour.
Con	If my partner has a nasty smell, I avoid kissing him.
Ass	Certain smells immediately activate strong feelings.
App	I smell my clothes to judge whether I have to wash them or not.
Con	When there is a nasty smell in the office/apartment of a colleague, I leave the room as soon as possible.
Ass	Certain odours can stimulate my fantasy.
Agg	To me it is more important to be able to smell than to be able to see or hear.
App	Sometimes I smell a person (e.g., my partner or my child) to judge, if he/she has drunken alcohol or smoked.
Con	I cannot pass good smelling candles in a store without buying one.
B) Importance of taste and flavour The questionnaire refers to the role your sense of taste plays in your daily life. Please answer all of the questions spontaneously. There are no right or wrong answers.
Scale		4	3	2	1
		I totally agree	I mostly agree	I mostly agree	I mostly disagree
App	I taste a food to find out whether it is spoiled or not.
Ass	Kissing a partner with a bad breath does not please me.
Con	Please imagine you go to a restaurant. There is the chance to participate in a tasting session at an additional cast of 10€. Would you take this offer?
Agg	To me it is more important to be able to taste than to be able to see or hear.
App	I taste a food before buying.
Ass	After taking a first bite of a delicious food, my appetite to eat gets stronger.
Con	When I don’t like the taste of a toothpaste, I don’t buy it.
Agg	Without my sense of taste, life would be worthless.
App	When I kiss my partner, I am able to understand whether he/she drank or smoked.
Ass	I feel rather quickly disturbed by a food that I don’t like.
Con	If my partner has a bad breath, I don’t kiss him/her.
App	After cooking/before serving pasta, I taste it to find out whether it is salty or not.
Ass	Certain tastes/flavours evoke a lot of memories.
Con	If I don’t like the food I tasted in a restaurant, I do not go back a second time.
App	I taste food with my eyes closed and I am able to understand what it is.
Ass	Certain tastes/flavours immediately activate strong feelings.
Con	I absolutely have to buy a food I enjoy after tasting it.
App	I often taste first only a little piece of a food to judge whether I want to eat more of it or not.
Ass	Certain tastes/flavours can stimulate my imagination.
Con	If I taste a food I don’t like, I feel the need to spit it as soon as possible.